Philippe Lemaire as Alfred Bretoux

Dany Saval as Herminie

Bernard Musson as Gaston Martin

Guy Piérauld as L'agent secret M.W. 427

Albert Pilette as Le premier agent

Michel Danjou as Le deuxième agent

Patricia Karim as Françoise

Gabriel Jabbour as Le commissaire

Michel Modo as Jean-Baptise

Roland Charbaux as Ludovic Belimar